Standard Test Method for Calorific (Heating) Value of Gases in Natural Gas Range by Continuous Recording Calorimeter

连续记录式量热计测定天然气类气体发热量（热值）的标准试验方法

LANGUAGES: English+Chinese【英文原文+中文翻译】

Significance and Use

4.1 This test method provides an accurate and reliable method to measure the total calorific value of a fuel gas, on a continuous basis, which is used for regulatory compliance, custody transfer, and process control.

Scope

1.1 This test method covers the determination with the continuous recording calorimeter (Note 1) of the total calorific (heating) value of fuel gas produced or sold in the natural gas range from 900 to 1200 Btu/standard ft3.

Note 1: An extensive investigation of the accuracy of the Cutler-Hammer recording gas calorimeter, when used with gases of high heating value, was made by the National Bureau of Standards in 1957 under a research project sponsored by the American Gas Association.

1.2 The subjects covered in this test method appear in the following sections:

Sections

Air-Gas Ratio Test

 

11

 

Apparatus

 

 5

 

Basis of Measurement

 

14

 

Cold Balance Test

 

10

 

Compensation of Complicating Factors

 

13

 

Condition of Gas Sample

 

 7

 

Definitions

 

 2

 

Installation of Apparatus

 

 6

 

Maintenance

 

Appendix X1

 

Operating Precautions

 

Appendix X2

 

Operation and Checking of Apparatus

 

 9

 

Precision

 

15

 

Scope

 

 1

 

Significance and Use

 

 4

 

Standardization of Calorimeter

 

12

 

Standardization, Preliminary, of Calorimeter by Hydrogen

 

 8

 

Summary of Test Method

 

 3

 

1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.